Cigar shaped craft flying over North Denver

On August 9th, at roughly 7:20am, I was on my way in to work. I happened to look down the street, and saw what appeared to be a black, cigar-shaped craft flying in the sky. At first, it appeared to be stationary, but then it appeared to be moving slowly toward my direction. It had rotated once or twice, was how I noticed the shape. I took a video with my phone, but got distracted. I looked up, and saw it was closer, and took another video, the one I uploaded. My attention was taken away briefly by another co-worker, and the next thing I knew it was gone.